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Because of the word "cumulative". What that means is that the height of the graph for any value (X=x) is the number (or proportion) of observations that were less than or equal to the value x.
Now consider the cumulative value of the graph for a value of X which is bigger than x. All the previous observations were ≤ x and so they will be ≤ the newer, larger value. So the height of the cumulative graph cannot decrease. It may increase if there are any observations whose value was between x and the new value.
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What is the definition Line Graph?
is a graph;that is used to jock down data.(uses dots and connects lines to it)
Shifting the graph of an equation up or down is called?
vertical translations
The best type of graph to use to show how some fixed quanity is broken down into parts is?
A pie chart or composite bar graph.
What is the trend of a graph?
The trend of a graph is the slope of any line on the graph that indicated a positive or growth factor and/or a negative or decaying factor. If the slope goes negative, the graph's line will go down thus indicating decay. If the slope becomes positive, the graph's line will go up thus indicating growth.
How would a graph of negative and positive acceleration differ?
This depends on what the graph represents. If it is a graph of velocity on the vertical and time on the horizontal, then if acceleration is at a constant rate, the graph will be a straight line with positive slope (pointing 'up'). If acceleration stops, then the graph will be a horizontal line (zero acceleration or deceleration). If it is deceleration (negative acceleration), then the graph will have negative slope (pointing down).
Usefulness of cumulative frequency curve?
It will show you whether it is a constant rate or if it speeds up or slows down.
How do you work out a cumulitive frequency?
in a maths question, you have a table. you add up the frequency column, but every time you add something, you write it down, e.g. frequency cumulative frequency 1 1 5 6 3 9 6 15 and so on :)
What is a continuous line graph?
a continuous line graph is a graph that is similar to a broken line graph but it always grows higher and higher it never goes down. e.g. age
What is an x-coordinate?
it is a down on the graph
If the line on a speed graph goes down this means?
you are slowing down
Explain how the graph of fx ln x be used to graph the function gx ex -1?
graph gx is the reflection of graph fx and then transformed 1 unit down
What is the definition Line Graph?
is a graph;that is used to jock down data.(uses dots and connects lines to it)
What describes how to translate the graph y x to obtain the graph of y x - 6?
To translate the graph y = x to the graph of y = x - 6, shift the graph of y = x down 6 units.
Is a vertical line up or down?
up and down it is the y axis on a graph
What is the frequency spectrum?
Scroll down to related links and look at "Frequency spectrum - Wikipedia"
How do you draw a horizontal bar graph?
up and down
What happens if the frequenCy of wave and its length increase?
That is impossible. Speed of wave c = frequency f times wavelength λ. To have a constant speed, the frequency goes up and the wavelength goes down or the frequency goes down and the wavelength goes up.
